450427 has 4 divisors (see below), whose sum is σ = 453600. Its totient is φ = 447256.

The previous prime is 450421. The next prime is 450431. The reversal of 450427 is 724054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724054 = 2 ⋅362027.

It is a cyclic number.

It is not a de Polignac number, because 450427 - 2⁷ = 450299 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450398 and 450407.

It is not an unprimeable number, because it can be changed into a prime (450421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363 + ... + 1660.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2⁴⁵⁰⁴²⁷ is an apocalyptic number.

450427 is a deficient number, since it is larger than the sum of its proper divisors (3173).

450427 is a wasteful number, since it uses less digits than its factorization.

450427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 450427 is about 671.1385847945. The cubic root of 450427 is about 76.6551736605.

The spelling of 450427 in words is "four hundred fifty thousand, four hundred twenty-seven".